I'm wondering is it just me, or does everyone else have problems with the EUA not working. I'm flying on the 31st from Mia-iah-dtw-day. The IAH-DTW and DTW-DAY worked fine even though it's on NWA. The CO leg howerver didn't upgrade and their are seats. I called and I was told "Yes, you are in your window,and it seems like the system skipped you. Wait until tonight at midnight" I think that bull. Does anyone have an tips on dealing with this problem? Everytime I fly I have to call.